43795161778 has 4 divisors (see below), whose sum is σ = 65692742670. Its totient is φ = 21897580888.

The previous prime is 43795161701. The next prime is 43795161799. The reversal of 43795161778 is 87716159734.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 42525451089 + 1269710689 = 206217^2 + 35633^2 .

It is a super-2 number, since 2×43795161778² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10948790443 + ... + 10948790446.

Almost surely, 2^43795161778 is an apocalyptic number.

43795161778 is a deficient number, since it is larger than the sum of its proper divisors (21897580892).

43795161778 is a wasteful number, since it uses less digits than its factorization.

43795161778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21897580891.

The product of its digits is 8890560, while the sum is 58.

The spelling of 43795161778 in words is "forty-three billion, seven hundred ninety-five million, one hundred sixty-one thousand, seven hundred seventy-eight".